mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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6203ce9f85
As the TODO in plugin/pkg/scheduler/scheduler.go described: move everything from pkg/scheduler into this package. Remove references from registry.
363 lines
14 KiB
Go
363 lines
14 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package priorities
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import (
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"reflect"
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"sort"
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"testing"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler/algorithm"
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)
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func TestServiceSpreadPriority(t *testing.T) {
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labels1 := map[string]string{
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"foo": "bar",
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"baz": "blah",
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}
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labels2 := map[string]string{
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"bar": "foo",
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"baz": "blah",
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}
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zone1Spec := api.PodSpec{
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Host: "machine1",
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}
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zone2Spec := api.PodSpec{
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Host: "machine2",
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}
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tests := []struct {
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pod *api.Pod
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pods []*api.Pod
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nodes []string
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services []api.Service
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expectedList algorithm.HostPriorityList
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test string
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}{
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{
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pod: new(api.Pod),
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nodes: []string{"machine1", "machine2"},
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expectedList: []algorithm.HostPriority{{"machine1", 10}, {"machine2", 10}},
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test: "nothing scheduled",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{{Spec: zone1Spec}},
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nodes: []string{"machine1", "machine2"},
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expectedList: []algorithm.HostPriority{{"machine1", 10}, {"machine2", 10}},
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test: "no services",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}}},
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nodes: []string{"machine1", "machine2"},
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services: []api.Service{{Spec: api.ServiceSpec{Selector: map[string]string{"key": "value"}}}},
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expectedList: []algorithm.HostPriority{{"machine1", 10}, {"machine2", 10}},
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test: "different services",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
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expectedList: []algorithm.HostPriority{{"machine1", 10}, {"machine2", 0}},
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test: "two pods, one service pod",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: api.NamespaceDefault}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
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expectedList: []algorithm.HostPriority{{"machine1", 10}, {"machine2", 0}},
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test: "five pods, one service pod in no namespace",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: api.NamespaceDefault}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: api.NamespaceDefault}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}, ObjectMeta: api.ObjectMeta{Namespace: api.NamespaceDefault}}},
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expectedList: []algorithm.HostPriority{{"machine1", 10}, {"machine2", 0}},
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test: "four pods, one service pod in default namespace",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: api.NamespaceDefault}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: "ns2"}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}, ObjectMeta: api.ObjectMeta{Namespace: "ns1"}}},
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expectedList: []algorithm.HostPriority{{"machine1", 10}, {"machine2", 0}},
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test: "five pods, one service pod in specific namespace",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
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expectedList: []algorithm.HostPriority{{"machine1", 0}, {"machine2", 0}},
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test: "three pods, two service pods on different machines",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
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expectedList: []algorithm.HostPriority{{"machine1", 5}, {"machine2", 0}},
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test: "four pods, three service pods",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []api.Service{{Spec: api.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
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expectedList: []algorithm.HostPriority{{"machine1", 0}, {"machine2", 5}},
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test: "service with partial pod label matches",
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},
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}
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for _, test := range tests {
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serviceSpread := ServiceSpread{serviceLister: algorithm.FakeServiceLister(test.services)}
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list, err := serviceSpread.CalculateSpreadPriority(test.pod, algorithm.FakePodLister(test.pods), algorithm.FakeMinionLister(makeNodeList(test.nodes)))
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if !reflect.DeepEqual(test.expectedList, list) {
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t.Errorf("%s: expected %#v, got %#v", test.test, test.expectedList, list)
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}
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}
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}
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func TestZoneSpreadPriority(t *testing.T) {
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labels1 := map[string]string{
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"foo": "bar",
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"baz": "blah",
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}
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labels2 := map[string]string{
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"bar": "foo",
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"baz": "blah",
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}
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zone1 := map[string]string{
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"zone": "zone1",
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}
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zone2 := map[string]string{
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"zone": "zone2",
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}
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nozone := map[string]string{
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"name": "value",
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}
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zone0Spec := api.PodSpec{
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Host: "machine01",
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}
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zone1Spec := api.PodSpec{
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Host: "machine11",
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}
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zone2Spec := api.PodSpec{
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Host: "machine21",
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}
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labeledNodes := map[string]map[string]string{
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"machine01": nozone, "machine02": nozone,
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"machine11": zone1, "machine12": zone1,
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"machine21": zone2, "machine22": zone2,
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}
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tests := []struct {
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pod *api.Pod
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pods []*api.Pod
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nodes map[string]map[string]string
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services []api.Service
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expectedList algorithm.HostPriorityList
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test string
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}{
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{
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pod: new(api.Pod),
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nodes: labeledNodes,
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expectedList: []algorithm.HostPriority{{"machine11", 10}, {"machine12", 10},
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{"machine21", 10}, {"machine22", 10},
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{"machine01", 0}, {"machine02", 0}},
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test: "nothing scheduled",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{{Spec: zone1Spec}},
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nodes: labeledNodes,
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expectedList: []algorithm.HostPriority{{"machine11", 10}, {"machine12", 10},
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{"machine21", 10}, {"machine22", 10},
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{"machine01", 0}, {"machine02", 0}},
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test: "no services",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}}},
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nodes: labeledNodes,
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services: []api.Service{{Spec: api.ServiceSpec{Selector: map[string]string{"key": "value"}}}},
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expectedList: []algorithm.HostPriority{{"machine11", 10}, {"machine12", 10},
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{"machine21", 10}, {"machine22", 10},
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{"machine01", 0}, {"machine02", 0}},
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test: "different services",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone0Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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},
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nodes: labeledNodes,
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
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expectedList: []algorithm.HostPriority{{"machine11", 10}, {"machine12", 10},
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{"machine21", 0}, {"machine22", 0},
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{"machine01", 0}, {"machine02", 0}},
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test: "three pods, one service pod",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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},
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nodes: labeledNodes,
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
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expectedList: []algorithm.HostPriority{{"machine11", 5}, {"machine12", 5},
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{"machine21", 5}, {"machine22", 5},
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{"machine01", 0}, {"machine02", 0}},
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test: "three pods, two service pods on different machines",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: api.NamespaceDefault}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: api.NamespaceDefault}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
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},
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nodes: labeledNodes,
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}, ObjectMeta: api.ObjectMeta{Namespace: api.NamespaceDefault}}},
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expectedList: []algorithm.HostPriority{{"machine11", 0}, {"machine12", 0},
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{"machine21", 10}, {"machine22", 10},
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{"machine01", 0}, {"machine02", 0}},
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test: "three service label match pods in different namespaces",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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},
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nodes: labeledNodes,
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
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expectedList: []algorithm.HostPriority{{"machine11", 6}, {"machine12", 6},
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{"machine21", 3}, {"machine22", 3},
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{"machine01", 0}, {"machine02", 0}},
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test: "four pods, three service pods",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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},
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nodes: labeledNodes,
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services: []api.Service{{Spec: api.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
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expectedList: []algorithm.HostPriority{{"machine11", 3}, {"machine12", 3},
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{"machine21", 6}, {"machine22", 6},
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{"machine01", 0}, {"machine02", 0}},
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test: "service with partial pod label matches",
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},
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{
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pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
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pods: []*api.Pod{
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{Spec: zone0Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
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},
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nodes: labeledNodes,
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services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
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expectedList: []algorithm.HostPriority{{"machine11", 7}, {"machine12", 7},
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{"machine21", 5}, {"machine22", 5},
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{"machine01", 0}, {"machine02", 0}},
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test: "service pod on non-zoned minion",
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},
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}
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for _, test := range tests {
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zoneSpread := ServiceAntiAffinity{serviceLister: algorithm.FakeServiceLister(test.services), label: "zone"}
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list, err := zoneSpread.CalculateAntiAffinityPriority(test.pod, algorithm.FakePodLister(test.pods), algorithm.FakeMinionLister(makeLabeledMinionList(test.nodes)))
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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// sort the two lists to avoid failures on account of different ordering
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sort.Sort(test.expectedList)
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sort.Sort(list)
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if !reflect.DeepEqual(test.expectedList, list) {
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t.Errorf("%s: expected %#v, got %#v", test.test, test.expectedList, list)
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}
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}
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}
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func makeLabeledMinionList(nodeMap map[string]map[string]string) (result api.NodeList) {
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nodes := []api.Node{}
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for nodeName, labels := range nodeMap {
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nodes = append(nodes, api.Node{ObjectMeta: api.ObjectMeta{Name: nodeName, Labels: labels}})
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}
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return api.NodeList{Items: nodes}
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}
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func makeNodeList(nodeNames []string) api.NodeList {
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result := api.NodeList{
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Items: make([]api.Node, len(nodeNames)),
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}
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for ix := range nodeNames {
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result.Items[ix].Name = nodeNames[ix]
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}
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return result
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}
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